22111021012 has 48 divisors (see below), whose sum is σ = 41467507200. Its totient is φ = 10284611040.

The previous prime is 22111021007. The next prime is 22111021061. The reversal of 22111021012 is 21012011122.

It is a junction number, because it is equal to n+sod(n) for n = 22111020983 and 22111021001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5033337 + ... + 5037727.

It is an arithmetic number, because the mean of its divisors is an integer number (863906400).

Almost surely, 2^22111021012 is an apocalyptic number.

It is an amenable number.

22111021012 is a deficient number, since it is larger than the sum of its proper divisors (19356486188).

22111021012 is a wasteful number, since it uses less digits than its factorization.

22111021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5596 (or 5594 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22111021012 its reverse (21012011122), we get a palindrome (43123032134).

The spelling of 22111021012 in words is "twenty-two billion, one hundred eleven million, twenty-one thousand, twelve".